Barbituric acid, C4HAN;O; is the parent compound of barbiturate drugs. Suppose a chemistwas going to perform a titration analysis on 25 mL of 0.20 M C4H&N;O; (K, = 9.80 x 105)using 0.18 M NAOH. Deduce the pH after addition of different volumes of NaOH.(1) 0 mL NAOH(ii) 10 mL NAOH(iii) 27.78 mL NAOH Sodium acetate, NaCH;COO (82.0343 g/mol) is commonly used as acidic buffer solution.Estimate the amount of NaCH;COO (in grams) to be mixed with 0.25 M acetic acid,CH;COOH in order to produce a 500 mL buffer solution of pH 5.09. Given Ka ofCH;COOH is 1.8 x 105

Given, Concentration of acid, C4H4N2O3 (say HA) = 0.20 M Volume of HA = 25 mL Acid dissociation…

Barbituric acid, C.H&N;O; is the parent compound of barbiturate drugs. Suppose a chemist was going to perform a titration analysis on 25 mL of 0.20 M CH&N;O; (K = 9.80 x 10) using 0.18 M NAOH. Deduce the pH after addition of different volumes of NaOH. ) 0 mL NaOH (11) 10 mL NaOH (iii) 27.78 mL NaOH

Barbituric acid, C.H&N;O; is the parent compound of barbiturate drugs. Suppose a chemist was going to perform a titration analysis on 25 mL of 0.20 M CH&N;O; (K = 9.80 x 10) using 0.18 M NAOH. Deduce the pH after addition of different volumes of NaOH. ) 0 mL NaOH (11) 10 mL NaOH (iii) 27.78 mL NaOH

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter15: Acid–base Equilibria

Section: Chapter Questions

Problem 49P

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Concept explainers

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

Question

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Barbituric acid, C4HAN;O; is the parent compound of barbiturate drugs. Suppose a chemist
was going to perform a titration analysis on 25 mL of 0.20 M C4H&N;O; (K, = 9.80 x 105)
using 0.18 M NAOH. Deduce the pH after addition of different volumes of NaOH.
(1) 0 mL NAOH
(ii) 10 mL NAOH
(iii) 27.78 mL NAOH

Sodium acetate, NaCH;COO (82.0343 g/mol) is commonly used as acidic buffer solution.
Estimate the amount of NaCH;COO (in grams) to be mixed with 0.25 M acetic acid,
CH;COOH in order to produce a 500 mL buffer solution of pH 5.09. Given Ka of
CH;COOH is 1.8 x 105

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